550385879 has 4 divisors (see below), whose sum is σ = 556570080. Its totient is φ = 544201680.

The previous prime is 550385831. The next prime is 550385887. The reversal of 550385879 is 978583055.

550385879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978583055 = 5 ⋅195716611.

It is a cyclic number.

It is not a de Polignac number, because 550385879 - 2¹⁶ = 550320343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550385279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3091967 + ... + 3092144.

It is an arithmetic number, because the mean of its divisors is an integer number (139142520).

Almost surely, 2^550385879 is an apocalyptic number.

550385879 is a deficient number, since it is larger than the sum of its proper divisors (6184201).

550385879 is an equidigital number, since it uses as much as digits as its factorization.

550385879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184200.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The square root of 550385879 is about 23460.3043245394. The cubic root of 550385879 is about 819.5128372446.

The spelling of 550385879 in words is "five hundred fifty million, three hundred eighty-five thousand, eight hundred seventy-nine".